ERROR:Uncaught exception occured. 'Chat' object has no attribute 'username'

[Teoretic6]

Hello!

I get this strange error and can't figure out what is causing it:
"ERROR:Uncaught exception occured. 'Chat' object has no attribute 'username'"

I successfully got and entered verification code from Telegram.
I'm using multi-word name of the chat.

Python 3.6.5
Linux Mint 18.3 (if it matters)

Any ideas on what is causing it?

[Teoretic6]

Found an issue in code after debugging

telegram_dumper.py, line 192

The issue is that group chat objects has no such field as "username", only dialogs with users have them.

Here's the example of the object of dialog with user:

It contains "username" field.

Will PR on this soon :)

[Kosat]

Thank you. I've accepted your PR and fixed the Travis MacOS build.
Cheers!